Simply put, each of these 50 HTC Touch smartphones "is individually addressed by a computer to co-function and create a choral arrangement -- assigning each phone a tone, the mass is transformed into an aural form that appears to come alive." Video after the break.

Apparently, it can be programmed to play any song, like the holiday-themed one in the video after the break, and remote musicians can access a live stream at the installation's site and play their own music.